质量密度 meaning in Chinese
de ity of ma
density of mass
ma de ity
mass density; specific mass
specific mass
Examples
ρ is the mass density of the material.
为材料的质量密度。- If the density is smaller , the universe will expand forever
若质量密度比临界值少，宇宙便会无休止地膨胀，我们称之为 - Introducing mass density allows the equation to be simple , understandable and applicable
而且，引入质量密度后，该方程形式简单并易于理解和应用。 - The density of the universe is still unknown . one of the major problems is the existence of
要准确量度宇宙的质量密度非常困难，最大的障碍来自宇宙的 - It takes a very large mass or a great concentration of mass to produce much spacetime curvature
我们得有非常大的质量或者很高的质量密度，才能产生很大的时空曲率。